湖南东部植被恢复对土壤有机碳矿化的影响

辜翔,张仕吉,刘兆丹,李雷达,陈金磊,王留芳,方晰

Effects of vegetation restoration on soil organic carbon mineralization in the east of Hunan, China

GU Xiang,ZHANG Shi-Ji,LIU Zhao-Dan,LI Lei-Da,CHEN Jin-Lei,WANG Liu-Fang,FANG Xi

表5 土壤有机碳(SOC)累积矿化量(Cm)、土壤有机碳矿化率(Cm/SOC)与土壤因子的Pearson相关系数

Table 5 Pearson correlation coefficient between soil organic carbon (SOC) cumulative mineralization (Cm), the percentage of Cm to SOC content (Cm/SOC) and soil factors, respectively

项目 Item 容重 Bulk density <0.002 mm黏粒百分含量 Soil clay percentage of <0.002 mm pH SOC TN TP C:N C:P N:P Cm -0.312 0.774** -0.734** 0.971** 0.986** 0.595* -0.315 0.653* 0.738** Cm/SOC 0.154 -0.203 0.323 -0.320 -0.223 -0.172 -0.732** -0.268 -0.096